起重机通过其底架与汽车底盘与大梁连接。
The crane is connected with the main beam through its under-frame and the truck chassis.
汽车起重机是在通用或专用在载重汽车底盘上装上起重工作装置及设备的起重机，主要采用伸缩式臂架，油缸变幅。
Mobile crane is a general or special the heavy lifting the chassis on the work and equipment, cranes, retractable type mainly adopt the oil tank movement.
起重机其弱点主要是总体布置受汽车底盘限制，一般车身较长，转弯半径大，且只能在起重机左右两侧和后方作业。
Crane its weaknesses are mainly general arrangements to the chassis, in general, the radius, the longer, and only in the right and left behind on his homework.
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